Feedhstand fisghee



FERDINAND FISCHER., CF CAMBRIDGE, MASSACI-IUSETTS.`

Letters Patent-No. 75,890, dated March 24, 1868.

IMPEOVED MACHINE FOB. STUFFING LEATHER.

Ete tlgttnlt nimh tu it time ttttas ttent mit nuttig gaat nt tigt aan TO .ALL WHOM IT MAY vCONCERN Be it known that I, FERDINAND FISCHER, of Cambridge, in the county of Middlesex, and State of Massachusetts, have invented an Improvement in Leathenstuihng Machines; 'and I do hereby declare that the fol-v lowing, taken in connection with the drawings which `accompany and form part of this specification, is a description of my invention sufficient to enable those skilled in the art to practise it.

My invention relates to the construction of rotary wheels or drums for stufng leather, or rather to the means of heating them. The common practice of heating has been to introduce fuel into the wheel, allowingitto remain there until the chamber is sufficiently heated, the fuel being then withdrawn, and the leather and oil intro"- duced, rotation being then imparted to the wheel to work the oil into the leather. Besides the inconvenience attending this practice, it is of course dieult to uniformly heat the chamber, and sometimes the stock is burnt, besideswhich the wheel has to be repeatedly reheated by fresh introductions of fuel.

To remedy these difficulties a steam-pipe has been sometimes'used, the pipe running 4axiallyV through the wheel, but as the skins have lto be continually falling across `the chamber, this steam-pipo is directly in their path, and they come into contact with and wind about the same. I i

My invention consists, primarily, in combining, with a stung-wheel, disk-chambers or' hollow heads or berges, placed near to the inner surfaces of the opposite heads of the wheel, these chambers being connected with a steam-pipe, so that the surfaces of the disks are heated by a current of steam, and, being kept heated by the circulation of .steam through them, they impart the desirable degree of heat throughout the chamber..

The drawings represent a'stutling-wheel embodying my invention.

A shows a section taken parallel with the heads; B, a vertical central cross-section. a e denote the heads, and b the perimeter ofthe wheel; e, the chamber enclosed thereby.4 The head is mounted on tubularjournals d, supported arid rotated von suitable bearings, those journalsconnecting at their outer lends with a steam-pipe, f. The chamber eis `charged with skins through a suitable door, g, and theinterior-curved surface of the drum or wheeljs studded with stout pegs or pins,-7L, which, as the wheel is slowly rotated, take up the skins, and carry them up until they slip olf from the pcgs'by gravity, and drop to the bottom of thc'whcel, to be again similarly carried up and again similarly dropped, untillsuiiiciently lled with oil, the oil being introduced into the chainber, and being worked into the skins by this process. l

Close to each'h'ead a, (and secured thereto by suitable fastenin'gs,) on the inner ond of each journal d, (whichprojects through the head, as seenI a1; 13,) is a ilat, round, disk-like box, i; intowhich the tubularjournal opens, steam connection between each box z and the adjacent steam-pipe f being established by the tubularjournal d. l From one side of each steam-box e', a steam-pipe, le, extends radially, the two pipes le connecting between two rows of pins, L, as seen at Z. From the opposite side of each steam-box, e', a waste-pipc,m, leads, said pipe extending from the side of the box, and letting oil' the water of condensation when these pipes come lowermost.l I

Steam,l entering at cnc pipef, passes' through the journal into the adjacent steam-box z', thence through pipe le to the opposite steam-box z', and thence out through the adjacent journal and steam-pipe, the'circulation heating the opposite heads of each box 27, and through them imparting heat throughout the chamber c, as will be readily understood. It will be-seen that this arrangement not only heats the chamber, but leaves all the space through which the skins fall free from obstruction. The wheel may be heated with one heater, t', but I prefer to have a heater on cach side, as shown at B'.

I claim combiningl with the smiling-wheel ailat steamfhcatedbox, z', placed in juxtaposition with and parallel to the inner surface of one of the heads of the wheel, and arranged to receive and discharge steam, substantially as set forth.

I also claim connect-ing this box with the opposite hollow journal and its steam-pipe f, by a pipe, 7c, arranged substantially as set forth.

I also claim placing a box, fz', against each head a, connecting the two by the pipe 7c, substantially as set forth.

I also claim combining with one or both of the heaters 2', a waste-pipe or waste-pipes m, substantially a's h d d --b d. s Own a csc c FERDINAND insonne.

Witnesses: f

J. B. Cnosnr, Fnsneis Gouw. 

